• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.
  • We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.

Issue Unable to create Let's Encrypt certificate for "webmail." sub-domain

Jens Reimann

New Pleskian
Although it is possible now with Plesk to assign a certificate to the "webmail." sub-domain, the Let's encrypt extension does not add the alias to the certificate request.

This will result in the "webmail.domain.my" sub-domain to be served with a certificate of only "domain.my" and "www.domain.my". Which results in a certificate error in the browser and if you have HSTS activate for your domain event prevents you from accessing the webmail at all.
 
Back
Top